Adjustabe lamp bracket or support



Mawh 10, 193l- P. A. HAUENsTElN 1,795,857

ADJUSTABLE LAMP BRACKET OR SUPPORT /M/f/V faz /4 Tra/@VVE K5.

March 10, 1931 x P. A. HAuENsrElN .1,795,857

ADJUSTABLE LAMP BRACKET 0R SUPPORT f Filed sept. 2e, 1929 2 sheets-sheet 2 /NVEN-TOI? Patented Mar. y1.0, 1931 UNITED STATES PATENT oFr-I'CEv y PAUL A. HAUFNSTFIN, oF BUFFALO, NEW YORK, AssIGNoR To vIMco MFG. co. INC.,

oF BUFFALO, NEW YORK ADJUSTABE LAMP BRACKET OR SUPPORT Application led September 26, 1929. Serial No. 395,322.

This invention relates to improvements'in portable adjustable lamp or light supports, brackets or devices, such as are used, for eX- ample, for attaching or supportingan elec-v tric light, on or in operative relation to machines of diiferent kinds, such as typewriters and other writing or printingmachines, dictaphones and the like. Certain features 0f the invention are applicable to brackets for supporting lights for more general use, such as upon beds or other articles of furniture and in other places where a portable light may be required. l

Some objects Vof the invention are to provide a portable, adjustable lamp support or bracket of simple and rugged construction which when mounted in place,permits the lamp to be adjusted to various operative positions; also to provide a bracket of this kind which is constructed to permit the lamp carried thereby to be moved from an operative to an inoperative position and vice-versa also to provide a support or bracket of this kind comprising a plurality of articulatedjo-ints or sections which are readily movable to and held in diiferent relative angular relations one to another; also to provide an articulated bracket or support with pivotal connections orjoints yof novel construction; also vto provide the bracket with improved clamping means for securing the' bracket t'o different articles; also'to provide improved adjusting means permitting the clamp tobe attached to articles of different sizes or forms; also to provide improved connections between the articulated sections ofthe bracket and said clamp and also between one of said sections and a lamp socket; and also to construct a lamp bracket of this kind having one or more hollow joints or sections through which the electric conductor for the light passes and to providejoints between said section or sections and the other parts of the bracket, which permits free passage of the conductor through said hollow section or sections.

More specific objects Aare to construct a lamp bracket of neat and' attractive appearance which can be attached to a typewriter or the like so lthat the lamp can be disposed above and illuminate the same, and which i can be folded down close to-the top' or frame with the lampv extending into the recess into which the type keys are disposed; and also to construct a bracket for this purpose having a relatively small and inconspicuous attaching part which extends close to the side of the machine. f

Other objects are to improve lamp supporting brackets or devices in the other respects hereinafter set forthandclaimed.

In the drawings:

Fig. 1 is a front elevation showing anembodiment of my improved adjustable lamp supporting bracket applied to Va portable typewriting machine;

Fig. 2 is a fragmentary front elevation y thereof, partly in section, showing the adjustable clamp thereof in operative relationto the frame of a typewriting machine; ,70

Fig.y 3 is a vertical section of the parts shown in Fig. 2, on an enlarged scale;

j Fig. 4 is a sideelevation of the lamp bracket and a part of the typewriting machine shown" inrFignl; i w Fig. 5 is a side elevation, on an enlarged i scale, of a connecting plug or member of the adjustable bracket; f

' F g. 6 is a-'face view of one of the tubular joints or sections of thebracket, detached; 8 Fig. 7 is a verticalsection, on an enlarged l scale, of the connection between the lamp socket and one of the bracket; v f Fig. 8 is a side elevation of a modified construction of the adjustable lamp bracket;

Fig. 9 is a vertical section thereof, on line 9 9` Fig. 8, on an enlarged scale, showing the means for attaching the same to a machine or joints or sections ofthe A other article.

for attachment to the articlev on which the me bracket is to be mounted, while the other outer section is secured directly to the socket of the lamp. The intermediate section has pvoted or articulated connection with the two outer sections, thus enabling the lamp to be placed in different relative positions to the article to effect the desired illumination thereof.

Theintermediate section is designated generally by the numeral 10 and the upper and lower outer sections by the numerals 11 and 12 respectively.

The intermediate section 10 preferably comprises an elongated tube or sleeve formed as shown in Fig. 6, of a single piece of sheet metal bent to a substantially cylindrical form and having opposite outer ends or Vattaching portions 14 and 15, each of which is preferably eXtended laterally with reference tothe bore of the section 10 and is of cupped or concaved form, see Fig. 3. The attaching portions 14 and 15, each have pivotal connection with complementary parts enabling the section 10 to swivel or turn relative to the outer sections of the bracket. For example, the lower attaching portion 15 is received in a complementary cupped or concaved lug 17 of a connecting member 18, and these parts 15 and 17 are formed with registering central holes 19 and 2O respectively, for the reception of a rivet or other securing device 21. @ne head 22 of the rivet 21is confined within and bears against the concaved inner face of the attaching portion 15, while the other head or enlargement 23 of said rivet bears against a spring disc or washer 24, the peripheral edge of which is turn frictionally engages the conveX outer Vface of the lug 17 with suiiicient pressure to hold the section 10 in any position relative to the part 18 to which it may be adjusted.

The upper attaching part 14 of the section 10 is similarly pivoted onV and frictionally l held against a concaved lug 25 on a connecting part 26, by means of a rivet 27 and spring washer or disc 28.

By making the engaging faces of the attaching parts 14 and i5y and the corresponding'lugs 17 and 25 of curved formation, as described, the area of contact and friction between these parts is increased, as compared with Vcorresponding fiat faces, and the parts are also considerably strengthened. 1n addition this construction enables the inner heads of therivets 21 and 27 to be largely concealed or confined in the concavities of the respecor edge of the part 32 of said plug 33. There is sufficient clearance between the two parts 34 and 35 of the plug and vdisc 3() to permit the latter to be rotated about said plug.

The plug 33 is provided at the opposite side of the shoulder 34 with a reducedr cylindrical part 33 formed to have a driving or tight lit in or isk otherwise rigidly secured to the upper 'end of a cylindrical sleeve or tubular member 40.

The lower outer section 12 of the bracket is preferably formed of two parts which are relatively movable lengthwise, each part being prV led or associated with a jaw or the likn f^ `eigegement with opposite faces or parts of the machine or other article to which the bracket is to be attached, suitable adjusting means being provided to vary the distance between said aws.

the construction shown for this pur- 4'he section 12 comprises the sleeve or nember 40 and a second part 41 preferably in t"I e form of a rod which telescopically engages in -.f'id sleeve 40. rilhe rod or part 41 is provic ed at its lower end with a lateral jaw or extension 42 which, if desired, may be cut away on its upper face to form a seat for cngagementwith one part of the article.

A second iaw or lateral extension 45 is operatively associated with the upper tubular `part 40 of the section 12, being, in the construction-shown, provided with au apertured Vpart 46, which' is rigidly secured or gripped between the lower 'lace of the shoulder' 34 and the upper end of said sleeve 40. This jaw 45 engages another part of the article to which the bracket is to be attached and cooperates with the lower jaw 42 in holding the bracket securely in place on the article when the aws are forced tightly againstthe same. The jaw or extension 45 may have various different formations, for example, as shown in Fi .2 and 3, this part is curved to fit the i nondingly curved part Vof the machine or ai icle which it engages, while, as shown in Fig. 1 this part of the arm is straight so as to properly engage the adjacent iiat face of the typewriter frame shown in that ligure. Any suitable means Vmay be provided for eiiectinfr relative adjustments between the jaws 42 and ln the construction shown, the rod or part 41 of the section 12 is bored and threaded axially at 47 for the reception of the threaded shank 43 of an adjusting screw 49, which is rotatably mounted'in abore in the plug The head 50 of this screw bears on the outer end or bead 35 of the plug '33, so that by turnine said screw in one- H direction or another, the parts 40 and 41 of the section 12 and the corresponding jaws 42 and can be adjusted as required.

By this construction it will be seen that the supporting bracket may readily be attached to articles of variousy forms and dimensions by appropriate adjustments of the clamping Vinhorizontal plane and to the section in v a vertical plane, the latter section may be rotated about the axis of and adjusted to any desired angular relation to the section 12.

The connection between the member 26 and the lamp ysocket A is effected in a somewhat ysimilar manner to the connectionfbetween the part 18 and the lower section 12.V Thisconnection includes a plug or member 52 provided with an annular shoulder 53 and a turned over portion 54 between which a lateral extension 55 ofthe member-26 is secured. In thisvcase however, said part 55, instead of having relative movement with said plug 52, ispinched or rigidly secured between the parts 53 and 54C so as to prevent axial rotation of the lamp socket relative to the part 26. The lampsocket A is of the usual construction provided with a standard internally threaded end or part 56, and the plug 52 is threaded 'at 57 and operatively engages in said part 56 of the socket.

The usual electrical cord or conductor a passes from the lamp vsocket A outwardly through a central bore 58 in the plug 52 and downwardly through the hollow intermediate section l0 of the bracket, thence passing directly to a plug or other electrical connection, thus being substantially concealed and confined within the bracket above the lower section l2 thereof.

It will be noted upon reference to'Figs. 3 and 7 that since the pivotal connections at the opposite ends of the section l0 are offset,

and the heads of the respective rivets 21 and 27 are located well within the concavities of the respective parts lll and 15`of said section, these rivets or pivotal connections Ado not obstruct the free passage of the electric cord or conductor a in the various adjustments of the bracket.

It will be seen from the foregoing descripltion that the lamp supporting bracket or device can be easily and quickly adjusted and readily secured on articles of various sizes and shapes and that the lamp and its socket A can be adjusted to different positions through its pivotal connection with the articulated section 10 lof the bracket.`

The attaching section 12 being of elongate form and telescopic construction can be disposed close tothe machine or article, will project Abut little ltherefrom and is inconspicuous. Also the adjusting screw being concealed within this section, does not detract from the appearance of the bracket or the article upon which the latter is mounted.

A bracket or device of this character, while of use for supporting lamps for widely different purposes, is nevertheless particularly adapted forsupporti-ng or yattaching a lamp l to a typewriting machine or otherwriting or printing machines. When the bracket has once been attached to the typewriteror ,other machineit can remain thereonxand-be transported w'iththe machine from place to place without detaching, the bracket from vthe machine, and when the machine is not in use the lamp can be moved to a position within the usual concavity or recess of the machine asillustrated in dottedy linesin Fig. l; In the case of standard typewriting machines for example, the intermediate section'lO, due to the location of the pivotal connections v2l and 33 close to the upper clamping jawxl5,H

can extend or be folded closelyagainst the upper face of the machine or article, and the lamp is protected from damage and permits the usual cloth or fabric dust cover or protector to be placed over the machine.y

In the case of a portable machine, this` feature permits the lamp and Vits bracket to remain attached thereto, and. when not in use.V

the lamp occupies a position within the aforementioned space in the machine and permits the cover or case of the machine to be secured in place without interfering with or engaging they lamp.

The described construction permits the lamp supporting bracket to be formed of relatively simple and inexpensive parts which can-be readily assembled. For example, the lower or clamping section 12 may be assembled by first driving or otherwise fitting the plug 33 into the upper end ofthe sleeveetO with the upper jaw or clamp :e5 disposed between the shoulder 34 of said plug and end of said sleeve, after which the lateralv extension 3() of the attachingA part 18 is applied over the upper end of said plug,

which at this time is yformed as shown in Fig.V 5. The upperend of the plug33l is then swaged or flared outwardly over said part 30 to form the retaining bead 35. The rod 41of thesection. v12 now inserted into the lower end of the sleeve 40 and the adroo justing screw 49 isv extended downwardly ter to an article, in which case the two part adjustable clamping section l2 can be omitted yand other means of simpler form substituted therefor.

' For example as shown in Figs. 8 and 9,. the

attaching member 18 at the lower end of the intermediate section 10 has a lateral lug 60 which is pivotally'secured by a rivet or other fastening device 6l to an oset extension or Y 'lug 62 of a bracket 63. This bracket may beV formed of sheet metal, having a depending attachingbportion 64, which is apertured at 65 for the reception of a fastening screw or device 66v by which it is. attached directly to the article on which the brackety is. to be per- `manently secured..

In Fig, 8A the' bracket is shown as attached to an upright sidewall of a portable typewriting machine: adjacent its top face, so as to permit a'll of' the adjustments. for the lamp which may be had by the use of the bracket shown in Fig'. l,` and whereby the bracket can be folded adjacent the top of the inachine with the lamp in the recess therein as before.. A

Any other suitable attaching member or means may be substituted for the bracket 63 -for' permanently securing the lamp support 'section' and. said other section. including an attaching part swiveled on said plug so as to -rotateaxially thereon and having' a. part eX- tendirrg therefrom andwhich is pivotally attached te the adjacent end of said other section.

2. A bracket for adjustably mounting a lamp ufponv a typewriter having a top Vtace and a recess therein below the plane of the top. of the machine in which the type keys are disposed, said bracket including an intermediate section atone endv of which a lamp is pivotally supported, an attaching section for securing the bracket to said typewriter, and a pivotal connection between the latter and said'interinediate section which, `when sai-d bracket is in opei-ffitivel position is disposed close' to' said top face ci' said typewriter to permit the intermediate section to be folded down so as to extend across and'lie close to said face, and said intermediate section being of suchlength as to vpermit the lamp at the 'other end thereof to be vadjusted so as to extend'within the recess of said typewriter and Y clu'ding a top face and a recess therein below the plane of said frame top in which the type keys are: disposed, said bracket including a section at one end of whicha lamp is pivotally supported, an attaching section for securing thev bracket tosaidtypewriter frame, said attaching section being ,ofl elongate orin extendingclose to a side of said typewriter, and which includes two vmembers which telescope one within the other, a clam-ping part on eachrof said members. one of which engages said top face of said typewriter, means for adjusting the other clamping part on said frame vtowards and from said first part to secure said section on the typewriter, and a pivotal connection between said attaching section and said other section which, when said attaching section is clamped in position', is disposed close to said first clamp-ing part to permit said other secl tion to befolded down so as toextend across and lie close tosaid top face oi said typewriter with sai-d lamp extending into said recess below the plane of said top of said typewriter,

whereby the bracket can be letty attached to said typewriter and be carried therewith while the lamp is protected by its position within the frame of the typewriter.

. PAUL A. HAUENSTEIN.

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